Automate docker app deploy

This guide will help you to automate a docker enviroment, using terraform, on Digital Ocean.

That's help a lot!

Install terraform

On Mac

brew install terraform

On Linux/Unix

wget https://releases.hashicorp.com/terraform/0.11.0/terraform_0.11.0_linux_amd64.zip 
unzip terraform_0.11.0_linux_amd64.zip
mv terraform /usr/local/bin

Clone Repository

git clone https://github.com/evaldofelipe/yawoen

Terraforms vars

On project directory, copy a file example where go the sensitive information about cloud provider.

cd yawoen && cp watcher/terraform.tfvars.example watcher/terraform.tfvars

You can generate the Digital Ocean API here: https://cloud.digitalocean.com/settings/api/tokens

You need create a decrypted copy of your sshkey to work on this project.

openssl rsa -in ~/.ssh/id_rsa -out ~/.ssh/id_rsa_terraform

NOTE: For set your local user key, use "~" to indicate your home folder, not the complete path.

To get a fingerprint of your sshkey

ssh-keygen -E md5 -lf ~/.ssh/id_rsa.pub | awk '{print $2}'

Private IP's is only for administration access. You can add just a single IP or a entire range.

NOTE: Use the same key as you using on Digital Ocean to control the new environment.

Deploy

Install terraform dependencies

cd watcher/ && terraform init

Start deploy proccess

terraform plan
terraform apply -auto-approve

NOTE: The deploy proccess can take a several time (20 minutes or more).

NOTE2: This automated method is programed to deploy at 7AM and destroy the environment at 7PM.

Testing

The last output is application address. To see the environment working:

curl APP_ADDRESS

Monitoring

You can use the DigitalOcean panel to find information about RAM, CPU, WAN from your droplets. https://cloud.digitalocean.com/droplets